At one time we had about eighty people here who did nothing but______into various family history.
A. researched
B. research
C. researching
D. to research
Ford's announcement of cutting up to 30,000 jobs by 2012 indicates that Ford_____.
A. has the biggest health problem of the car industry
B. has made profits from its health-care legacy
C. has accumulated too heavy a health-care burden
D. owes a great deal of debt to its employees
—There's someone knocking at the door. Who could______be?—I have no idea.
A. he
B. it
C. she
D. that
When______to dinner at the White Rose Restaurant, he seemed very happy and accepted the invitation.
A. invited
B. inviting
C. to be invited
D. having invited